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J. W. CARVER.

SHOE SOLE BUFFING MACHINE.

Patented Oct. 23, 1888.

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JAMES \V. CARVER, OF LYNN, MASSACHUSETTS.

SHOE SOLE=BUFFENG lvlACl-ilNE.

SPECIFICATION forming part of Letters Patent No. 391,581, dated October 23, 1888.

Application filed July 25, 1888. Serial No. 280,975.

To all whom, it may concern:

Be it known that I, JAMES W. CARVER, of Lynn, in the county of Essex and State of Massachusetts, a citizen of the United States, have invented a new and useful Improvement in Boot and Shoe Sole Buffing Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of ,this specification, in explaining its nature.

The invention relates especially to the pad of a boot and shoe sole butting machine, a covering of buffing or abrading material secured I thereto, the means for fastening said covering to the pad, and to the covering itself.

In the drawings, Figure 1 is a sectional view of the pad and its support. Fig. 2 is a view in plan thereof. Figs. 3 and 4c represent the manner of applying the buffing or abrading covering to the pad. Fig. 5 is a view of the plate. Fig. 6 is a view enlarged of the abrading-covering of the pad before it is applied.

A represents the post or spindle upon which the pad B is mounted, and which is adapted to be attached to the rotary spindle of a rotary boot or shoe sole buffing machine. This spin dle A has a head, a, at its end, to which is at tached by screws to a circular plate, a, of stiff yet flexible material, preferably leather. This circular plate a may be directly attached to the head a, or there may be imposed, as represented in the drawings,a circular plate, 0:, also preferably of leather; or the two plates at 00 may be formed integral, if desired. Upon this plate there is secured, preferably by gluing, the pad B, which is circular in shape, and which preferably is made of felt. To the circular flexible plate a there is secured three hooks, a, which, when in opeYative position, have their ends a extending inwardly from their shanks and from the edge of the plate of, and one or all of the hooks maybe arranged or attached to the plate to be turned for the pun pose of the attachment of the buffing or abrading cover C,and to provide them with this turning movement each hook has a shank, aiwhich extends through a hole in the washer a", ahole in the plate, and the under washer, a and is upset upon the under washer sufficiently to cause the hook to be held to the plate with quite a stiff friction, but not sufficiently to pre- Vent its being turned. It is necessary for only (No model.)

one of the hooks to have this movement. The other two may be rigidly secured to the plate.

The cover 0 is made of any fiexiblematerial; but I prefer cloth or paper, especially emerycloth or sand-paper. It has the sections a which form arcs of a circle, and are of a size to reach the edge of the circular pad B, and three cars, a, which extend beyond the line of the circular edge, and have formed in them eccentrically to a line drawn from the center of the cover through the center of the car a hole, a. (See Fig. 6.)

The cars a provide means for fastening the cover 0 to the circular pad B, and they extend over the edge of the pad and of the plate a", and are caught upon the hooks (6, which extend through the eccentric holes formed there in, and therefore cause the cover to be applied to the pad substantially as represented in Figs. 3 and 4.

To attach the cover to the pad one of the hooks a is turned to present its point or end outwardly, and the cover is attached to the other two hooks by bending the ears about the edge of the circular pad and plate and engaging the hooks with the holes of two of the ears. The third ear is then folded over the edge of the pad and plate, and its hole entered on the end of the hook extending outward and moved over the same onto the shank of the hook, and the hook is then turned to bring its end inward, thus serving to lock the cover securely upon the pad and to the plate. The securing of the cover 0 to the plate in this manner causes the cover to have three tangential edges at a, and this result is due to the manner of forming the pad and securing it to the plate. It is desirable that the cover should be thus formed in order that the buffing-pad may be used to buff the surface of the shank of the outsole to the breast of the heel.

Having thus fully described my invention, I

claim and desire to secure by Letters Patent' of the United States- 1. A buffing-pad for a boot and shoe sole buffing machine, comprising a sleeve or spindle, A, a circular plate'mounted thereon having the fastening pins or hooks (6 upon its back, a circular pad concentrically attached to said plate, and a cover having an abradingsurface provided with fastening-ears, by which the pad is secured to the back of the said circular plate, having the eccentric holes a for the reception of said pins or hooks, substantially as described.

2. In a buffing-pad for a boot and shoe sole buffing machine, the combination of the circular plate a having the hooks a, one of which is adapted to be turned upon the center of its attaching-shank, the circular pad B, attached concentrically to the plate, and a cover, O,having ears a", provided with eccentric holes a,vvhich are attached and held to the hooks a, as described, substantially as set forth.

3. As an improved article of manufacture, the bufling-cover consisting of flexible mate- 'rial having an abrading or buffing surface having the ears a", in which are the eccentric holes a, substantially as described.

at. A butting-tool for a boot and shoe sole buffing machine, having a plate, of, a circular pad, B, secured to said plate, and an abradingcover, (3, having ears a drawn over the edge of said pad and attached to the back side of the plate a in a manner to provide the pad with the tangential edges a, substantially as described.

JAMES W. CARVER.

Witnesses:

F. F. RAYMOND, 2d, J. M. DOLAN. 

